There is a Frenchman who is experimenting with TIG/MIG welding and a Delta type 3D setup. So far he did not really succeeded in building something out of metal. But his efforts are definitely promising for the near future.

Mind you, home 3D printing with metal opens up the possibility for individuals to make their own guns. This is something that I'm sure of governments don't like to see happening. It would take away their monopoly on violence, wouldn't it?

Thanks for setting up this 3D topic. I was thinking about it, but not sure to start it. Anyway, it is there and I hope it will be of great help to everyone on the forum and beyond.

Now that I have my mind open to the possibilities I probably need to calm down.

There are all sorts of theoretical refinements to nozzles, impellers, plumbing fittings and so much more that have been too expensive to implement due to the costs of traditional manufacturing methods. Now those doors are open.

As to making guns...

1. it has already been done albeit with a design that is not very safe.2. you can make your own guns already with a decent metal mill/lathe. The skill set is a bit different though.

SU has a lot of plug ins available that can easily help you to draw impellers, propellers, coils, helix etc. etc. Got many of these tools that really help out to do things quick and good. Man, the web is so rich for who dares to look.

I would not trust a gun printed from a 3d printer. That sort of thing should be machined, I would worry about the pixels(I have no idea what they call each 3d dot that builds the shape are called so pixels is the best I could come up with) not holding together.

You do the actual printing in wax instead of plastic, you can even just send your designs to a company who wil do this for you. Then you send the wax model to a foundry who will use the lost wax casting methods to produce metal parts.

The kind of people who are going to be 3d printing guns are not the most sensible chaps or gals in the first place.

Why not? What's the difference of having an idiot printing a gun and using it, or having a brain washed moron working for the government (military or police) following "orders" of idiots that direct them to use it? Follow the news and it's clear where the real danger comes from….not from the individual printing a plastic gun.

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